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A652–07–880 Issue D

Page ii

© Edwards Limited 2014. All rights reserved.

Edwards and the Edwards logo are trade marks of Edwards Limited.

Contents

Clean the pump oil level sight glass .................................................................................28

Clean the motor fan cover ............................................................................................30

Clean and overhaul the pump .........................................................................................30

Test the motor condition ..............................................................................................30

Fit new blades to the pump ...........................................................................................30

Fault finding ............................................................................................................. 31

The pump has failed to start ..........................................................................................31

The pump has failed to achieve the specified performance (has failed to reach ultimate vacuum) ......31

The pump is noisy ....................................................................................................... 31

The pump surface temperature is above 100 °C ...................................................................32

The vacuum is not fully maintained after the pump is switched off ...........................................32

The pumping speed is poor ............................................................................................32

There is an external oil leak ..........................................................................................32

Storage and disposal ........................................................................... 33

Storage ...................................................................................................................33

Disposal ................................................................................................................... 33

Service and spares .............................................................................. 35

Introduction .............................................................................................................35

Service .................................................................................................................... 35

Spares available .........................................................................................................35

For return of equipment, complete the HS Forms at the end of this manual.

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Содержание E-LAB 2

Страница 1: ...struction Manual E LAB 2 Pumps Description Item Number E LAB 2 Pump 110 120 220 240 V 50 60 Hz single phase A652 07 903 E LAB 2 Pump 100 200 V 50 60 Hz single phase A652 07 904 E LAB 2 Pump 110 120 V 50 60 Hz single phase A652 07 906 ...

Страница 2: ...No100 2004 Motors and Generators C22 2 61010 1 04 2004 Safety requirements for electrical equipmentfor measurement Control and laboratory use Part 1 Generalrequirements UL61010A 2002 Safety requirements for electrical equipmentfor measurement Control and laboratory use Part 1 Generalrequirements EN50581 2012 Technical Documentation for the Assessment of Electrical and Electronic Products with resp...

Страница 3: ...t flow rate optional 14 3 9 Fit the inlet catchpot 15 3 10 Electrical installation 15 3 10 1 Check and configure the motor 15 3 10 2 Connect the pump to the electrical supply 17 3 10 3 Check the direction of rotation 18 3 11 Inlet and outlet connections 18 3 12 Leak test the system 18 4 Operation 19 4 1 Start up procedure 19 4 2 To achieve ultimate vacuum pump condensable vapours 19 4 3 To deconta...

Страница 4: ...failed to start 31 5 14 2 The pump has failed to achieve the specified performance has failed to reach ultimate vacuum 31 5 14 3 The pump is noisy 31 5 14 4 The pump surface temperature is above 100 C 32 5 14 5 The vacuum is not fully maintained after the pump is switched off 32 5 14 6 The pumping speed is poor 32 5 14 7 There is an external oil leak 32 6 Storage and disposal 33 6 1 Storage 33 6 2...

Страница 5: ...n assembly 13 6 Select the gas ballast flow rate 14 7 Motor voltage configuration 16 8 The outlet oil mist filter 25 9 Pump inlet filter assembly 26 10 Sight glass assembly 28 11 Part sectional view of the oil return assembly 29 Tables Table Page 1 Electrical data pumps with Item Numbers 903 or 906 8 2 Electrical data pumps with Item Numbers 904 8 3 Checklist of components 10 4 Recommended time sw...

Страница 6: ...This page has been intentionally left blank A652 07 880 Issue D Page iv Edwards Limited 2014 All rights reserved Edwards and the Edwards logo are trade marks of Edwards Limited ...

Страница 7: ...mportant safety information is highlighted as WARNING and CAUTION instructions these instructions must be obeyed The use of WARNINGS and CAUTIONS is defined below CAUTION Cautions are given where failure to observe the instruction could result in damage to the equipment associated equipment and process The units used throughout this manual conform to the SI international system of units of measure...

Страница 8: ...ase electric motor through a flexible motor coupling The motor is totally enclosed and is cooled by the motor cooling fan which directs air along the motor fins The pumps are cooled by an additional fan attached to the motor coupling The motor has an on off switch 12 and a thermal overload device When the motor is too hot the thermal overload device switches off the pump The thermal overload devic...

Страница 9: ...re 1 The E LAB 2 Pump 1 Electrical supply connector 2 Voltage indicator 3 Inlet 4 Inlet catchpot 5 Outlet 6 Outlet oil mist filter 7 Oil filler plugs 8 Oil level sight glass 9 Oil drain plug 10 Oil change tag 11 Rubber feet 4 off 12 On off switch 13 Motor fan cover 14 Correct direction of rotation 15 Lifting handle 16 Gas ballast oil return assembly ...

Страница 10: ...A652 07 880 Issue D Page 4 Edwards Limited 2014 All rights reserved Edwards and the Edwards logo are trade marks of Edwards Limited This page has been intentionally left blank ...

Страница 11: ... C Maximum altitude operation 2000 m Pollution degree 2 Installation category II Suckback protection 1 x 10 5 mbar ls 1 1 x 10 3 Pa ls 1 Maximum displacement 50 Hz electrical supply 3 7 m3 h 1 60 Hz electrical supply 4 5 m3h 1 Maximum pumping speed Pneurop 6602 1979 50 Hz electrical supply 3 3 m3 h 1 60 Hz electrical supply 3 9 m3h 1 Maximum permitted inlet pressure and gas ballast inlet pressure ...

Страница 12: ...lotted against inlet pressure 2 3 Mechanical data 2 3 1 General Overall dimensions See Figure 3 Degree of protection IEC 34 5 1981 IP44 Maximum tilt angle 10 Pump motor rotational speed 50 Hz electrical supply 1470 r min 1 60 Hz electrical supply 1760 r min 1 Maximum mass of pump 25 0 kg Without pump oil inlet catchpot outlet mist filter and gas ballast oil return kit 1 60 Hz 2 50 Hz ...

Страница 13: ...can be manually switched between nominal supply voltages of 110 120 V and 220 240 V refer to Section 3 10 1 When starting a cold pump the motor will draw a start up current for up to several seconds therefore use a slow blow fuse to prevent unnecessary fuse failure during pump start up Within five minutes as the oil in the pump warms up the current drawn will slowly reduce to the full load current...

Страница 14: ...olymers nickel and stainless steel Table 1 Electrical data pumps with Item Numbers 903 or 906 Nominal supply V Frequency Hz Power W Full load current A Maximum fuse rating A 220 240 50 450 3 4 5 230 240 60 550 3 0 5 110 50 450 6 8 13 115 120 60 550 6 9 13 Table 2 Electrical data pumps with Item Numbers 904 Nominal supply V Frequency Hz Power W Full load current A Maximum fuse rating A 200 50 450 4...

Страница 15: ...et oil mist filter and the gas ballast oil return kit are correctly fitted as described in the following sections Safely route any cables and pipes to prevent a trip hazard 3 2 System design considerations Consider the following points when designing the pumping system Use a suitable valve to isolate the pump from the vacuum system to allow the pump to warm up before pumping condensable vapours or...

Страница 16: ... the pump by hand If using mechanical lifting equipment do not attach the equipment to the handle for stability use slings around the motor and the pump body Provide a firm level platform for the E LAB 2 Locate the E LAB 2 so that the oil level sight glass Figure 1 item 8 and the oil change tag 10 are visible and so that the oil filler plug 7 and oil drain plug are 9 accessible If the E LAB 2 will...

Страница 17: ... the elbow already fitted ensure that the free end of the elbow points vertically downwards as shown on Figure 4 6 Use another Co Seal 9 and clamping ring 10 to secure one of the hose adaptors 11 to the elbow 3 7 Fit the gas ballast oil return assembly 1 Remove the drain plug Figure 8 item 4 from the drain port on the oil mist filter 2 Fit the drain adaptor Figure 5 item 8 to the drain port on the...

Страница 18: ...bow 5 Co Seal 6 Clamping ring 7 Co Seal 8 Elbow 9 Co Seal 10 Clamping ring 11 Hose adaptor 12 Oil mist filter outlet 13 Outlet oil mist filter 14 Oil mist filter inlet 15 Co Seal 16 Clamping ring 17 Pump outlet 18 Gas ballast control 19 Pump inlet 20 Clamping ring 21 O ring centring ring and filter 22 Inlet catchpot outlet 23 Inlet catchpot drain plug 24 Inlet catchpot 25 Inlet catchpot inlet 26 C...

Страница 19: ...dwards Limited Installation A652 07 880 Issue D Figure 5 Fit the gas ballast oil return assembly A Side view pump inlet and inlet catchpot omitted for clarity B Top view 1 Oil mist filter 2 Hose clip 3 Flexible oil return tube 4 Nozzle 5 Oil return assembly 6 E LAB 2 pump 7 Restrictor 8 Drain adaptor ...

Страница 20: ...e 5 has circular indentations 2 and 3 the position of these indentations with respect to the indentation 4 on the oil return assembly identifies the gas ballast flow setting Turn the restrictor plate to the required position To select no gas ballast flow turn the restrictor plate so that none of the indentations 2 and 3 are aligned with the indentation 4 on the oil return assembly To select low ga...

Страница 21: ...ectrical installation 3 10 1 Check and configure the motor CAUTION Ensure that the motor is correctly configured for the electrical supply If the motor is configured for 110 V operation and the pump is operated with a 240 V supply the motor will be damaged Ensure that the voltage shown on the voltage selector switch Figure 7 item 3 in the motor cover corresponds with the local electrical supply vo...

Страница 22: ...Edwards Limited Installation Figure 7 Motor voltage configuration A Top view of motor B View of voltage selector switch cover C View of On off switch 1 Terminal box 2 Electrical inlet connector 3 Voltage selector switch 4 On off switch 5 Voltage selector switch cover 6 Retaining screws 7 Position I on 8 Position 0 off ...

Страница 23: ...end and with the other end of the cable fitted with a plug suitable for the local electrical supply E LAB 2 pumps with Item Number A652 07 903 are not supplied with an electrical supply cable a suitable electrical supply cable must be ordered separately Use the following procedure to connect the electrical supply to the pump 1 Ensure that the on off switch on the motor Figure 7 item 4 is in the of...

Страница 24: ... is incorrect switch off the electrical supply immediately and contact the supplier or Edwards for advice 3 11 Inlet and outlet connections CAUTION Ensure that the outlet hose is routed below the level of the pump outlet If not condensates may drain back into the pump and damage it Use suitable 1 2 inch inside diameter hose to connect the vacuum system to the inlet Figure 1 item 3 on the inlet cat...

Страница 25: ... switch on the electrical supply to the pump 4 2 To achieve ultimate vacuum pump condensable vapours If the E LAB 2 does not achieve the performance specified in Section 2 make sure that this is not due to system design before contacting the or Edwards for advice In particular the vapour pressure of all materials used in the vacuum system including pump oil see below must be much lower than the sp...

Страница 26: ...rload device which isolates the E LAB 2 from the electrical supply when critical temperature or current levels are exceeded The overload device resets automatically when the motor has cooled When checking the E LAB 2 make sure that the pump is not going through a repetitive cycle of thermal overload failures and automatic resets If necessary reduce the thermal load from the pumped gases to prevent...

Страница 27: ...rection of pump rotation if the electrical supply has been disconnected The pump pump oil inlet catchpot outlet oil mist filter and gas ballast oil return kit will be contaminated with the process chemicals that have been pumped during operation Ensure that the pump is decontaminated before maintenance and that adequate precautions are taken to protect people from the effects of dangerous substanc...

Страница 28: ... The Item Numbers of the spares and kits are given in Section 7 5 3 Check the liquid level in the inlet catchpot Look at the level of fluid in the inlet catchpot Figure 1 item 4 If the level is close to or above the MAX level mark 1 Place a suitable container under the drain plug Figure 4 item 23 2 Remove the drain plug and allow the fluid to drain out of the inlet catchpot 3 Refit the drain plug ...

Страница 29: ...ace the oil as described below If the pump continues to be used and the oil condition deteriorates until the colour of the oil is approximately the same as the lower bar on the side panel or tag clean and overhaul the pump as described in Section 5 11 Use the following procedure to replace the pump oil 1 Operate the pump for approximately ten minutes to warm the oil then use the on off switch Figu...

Страница 30: ...ow 4 and Co Seal 3 from the outlet 12 of the oil mist filter 2 Undo and remove the four screws Figure 8 item 12 that secure the upper body 10 to the lower body 7 then remove the upper body 3 Lift out the elements 8 10 and inspect the outer surface of the elements for contaminates If the elements need to be replaced dispose of them safely refer to Section 6 and obtain new elements If the elements d...

Страница 31: ... 07 880 Issue D Figure 8 The outlet oil mist filter 1 Outlet 2 Odour element seal 3 Pressure relief valve 4 Drain plug 5 Mist filter element O ring 6 Inlet 7 Lower body white 8 Mist filter element 9 D seal 10 Upper body grey 11 Odour element 12 Securing screws 13 Maximum oil level mark 14 Sight panel Pump exhaust gas Oil droplets ...

Страница 32: ...ep 7 If they are not clean continue at Step 3 3 Remove the O ring 2 from the centring ring and filter assembly 1 Do not allow the O ring to come into contact with the cleaning solution 4 Wash the centring ring and filter assembly in a suitable cleaning solution and allow it to dry 5 If necessary wipe the O ring with a clean dry lint free cloth 6 Refit the O ring 2 to the centring ring and filter a...

Страница 33: ...operated accidentally 2 Undo and remove the hose clip Figure 5 item 2 on the oil mist filter end of the oil return tube 3 then remove the end of the oil return tube from the drain adaptor 8 on the oil mist filter 1 3 Remove the restrictor 7 from the oil return tube and remove the blockage from the restrictor 4 Refit the restrictor 7 in the end of the oil return tube 3 fit the end of the oil return...

Страница 34: ...ezel 2 the sight glass 3 and the O ring 4 from the oil box 5 4 Clean the screws bezel and sight glass with a suitable cleaning solution 5 Wipe the O ring with a clean dry lint free cloth 6 Wipe the sight glass recess in the oil box with the cloth 7 Refit the O ring sight glass and bezel and secure with the two screws 8 Refill the pump with oil as described in Section 5 5 9 Check that the sight gla...

Страница 35: ...ved Page 29 Edwards and the Edwards logo are trade marks of Edwards Limited Maintenance A652 07 880 Issue D Figure 11 Part sectional view of the oil return assembly 1 Screw 2 Air intake 3 Restrictor plate 4 Expansion chamber 5 Silencer tube ...

Страница 36: ...5 11 Clean and overhaul the pump Clean and overhaul the pump as described in the instructions supplied with the clean and overhaul kit see Section 7 5 12 Test the motor condition Test the earth continuity and the insulation resistance of the pump motor in accordance with local regulations for periodic testing of electrical equipment The motor of the E LAB 2 complies with IEC 1010 1 We recommend th...

Страница 37: ...d The pump has seized after long storage The pump has been left to stand after contaminants have been pumped and has seized The motor is faulty 5 14 2 The pump has failed to achieve the specified performance has failed to reach ultimate vacuum The pressure measurement technique or gauge head is unsuitable or gives an incorrect indication of pressure For example a contaminated Pirani gauge can indi...

Страница 38: ...minated The process gas is too hot or the throughput is too high 5 14 5 The vacuum is not fully maintained after the pump is switched off The gas ballast oil return assembly is incorrectly fitted The inlet valve pad is damaged The inlet valve has not closed 5 14 6 The pumping speed is poor The connecting pipelines are too small in diameter The connecting pipelines are too long The inlet catchpot i...

Страница 39: ...onnect the pump from the vacuum system 4 Drain any fluid from the inlet catchpot and drain any oil from the oil mist filter 5 Replace the oil as described in Section 5 5 6 Place and secure protective covers over the inlet and outlet ports 7 Store the pump in cool dry conditions until required for use When required prepare and install the pump as described in Section 3 If the pump has been stored f...

Страница 40: ...A652 07 880 Issue D Page 34 Edwards Limited 2014 All rights reserved Edwards and the Edwards logo are trade marks of Edwards Limited This page has been intentionally left blank ...

Страница 41: ...ing equipment decontamination service exchange repair rebuild and testing to factory specifications Equipment which has been serviced repaired or rebuilt is returned with a full warranty Local Service Centres can also provide Edwards engineers to support on site maintenance service or repair of equipment For more information about service options contact the nearest Service Centre or other Edwards...

Страница 42: ...A652 07 880 Issue D Page 36 Edwards Limited 2014 All rights reserved Edwards and the Edwards logo are trade marks of Edwards Limited This page has been intentionally left blank ...

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